Bobbin



April 14, 1925. 1,533,913

R. D. HEYMANN BOBBIN Filed March 24, 1924 A TTORNEY.

INVENTOR.

Patented Apr. 14, 1925.

UNITED STATES PATENT OFFICE.

ROY D. HEYMANN, OF HARTFORD, CONNECTICUT.

BOBBIN.

} Application filed March 24, 1924. Serial No. 701,392.

the county of Hartford and State of Con.

necticut, have invented certain new and use ful Improvements in Bobbins,in which the following is a specification.

This invention relates to a bobbin, the objects of the invention beingto provide a device of this nature which can be inexpensively andreadily made and which is strong and quite serviceable.

In the drawing accompanying and forming part of the presentspecification there is shown in detail one of the several advantageousforms of embodiment of the invention which, to enable those skilled inthe art to practice the same, will be set forth fully in the followingdescription. I am not restricted to this disclosure. I may departtherefrom in several respects within the scope of the invention definedby the claims following said description.

Referring to said drawing:

Fig. 1 is an elevation of the appliance.

Fig. 2 is a longitudinal sectional elevation.

Fig. 3 is a top plan.

Fig. 4 is abottom plan.

Fig. 5 is an elevation of a spider.

Like characters refer to like parts throughout the several views.

The device, as shown, generally involves a ,frustro-conical body, as 2,having several transverse circumferential grooves as 3.

The body e'nclosesa spider, such as that denoted in a general way by 4-and including a shank or stem, as 5. The lower end of the shank or stem5 is embedded in a central hole in the base 6. Connected to the top orupper end of the shank or stem 5 is fitted the head 7, generally ofinverted cup-like form. having in the periphery of its flange severalprongs, as 8, which bite into the stock of the pasteboard body 2interiorly thereof.

l Vhat I claim is:

1. A hollow bobbin of frusto-eonical form, the body receiving in it aspider having a base that'reeeives the lower edge. of the body andhaving a head which is interlocked with the body.

2. A hollow bobbin of frusto-conical form and of pulp, the bodyreceiving in it a spider comprising a base that fits over the lower edgeof the body and having a head and a hollow stem connecting the head andthe base, the head having spurs which are pressed downwardly onto thebody, said hollow stein being adapted to slidingly fit over a spindle.

In testimony whereof I afiix my signature.

ROY D. HEYMANN.

